RRD Dolphin ML Orange Line Y31 45

45volume, L
1,600length, mm
430width, mm
3.72slenderness

Disciplines prone

The Dolphin ML Orange Line Y31 has 3 sizes in the current range, from 45 to 65 L. Its slenderness, 3.72, is greater than that of 82% of the 1,895 current boards that publish a length and a width.

Closest boards from other brands

Mount is shown beside each board, never matched on.

Current boards from other brands within ±7% of volume and ±2% of length, and ±2% of slenderness where both publish a width of the RRD Dolphin ML Orange Line Y31 45, closest first.
Brand	Board	Volume L	Δ volume	Length mm	Δ length	Slenderness	Mount
Loco Surfing	Loco Surf Foil Board 5'3''	47.5	+5.6%	1,600	+0.0%	—	—

Specifications

Every figure is RRD's own, read from the source linked in the last row, converted to millimetres and kilograms where the brand prints inches or pounds. Slenderness is computed here, length ÷ width.
Family	Dolphin ML
Model	Dolphin ML Orange Line Y31
Size, as the brand prints it	45
Volume, L	45
Length, mm	1,600 (5'3")
Width, mm	430
Thickness, mm	105
Weight, kg	4.1
Slenderness (length ÷ width)	3.72
Slenderness band	3.0–4.0
Mount	—
Strap inserts	yes
Build	—
Construction	ORANGE Line: precision-molded Super EPS core (20 kg/m3), full 160 g/m2 fiberglass deck and bottom
Disciplines	prone
Rider weight	—
Rider level	—
Model year	—
Source	manufacturer · read 2026-10-02

Every figure above is the manufacturer's published claim, converted to comparable units.

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